Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

NAD CD 514 won't spin
NAD CD 514 won't spin
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 10th March 2019, 10:42 AM   #1
SalveTitus is offline SalveTitus
diyAudio Member
 
Join Date: Mar 2019
Default NAD CD 514 won't spin

Hi, any ideas on the following? tried what I could but no results...
A friend asked me if I could repair a NAD CD player 514. When you inserted a CD, it briefly started spinning but then jumped to a state where the track and time indicators are hyphens ("- - - -").
1 I checked the lens and everything around it, couldn't find anything. I found I could by the complete lens unit for $15 or something so replaced. Alas, no improvement.
2 I checked the connections from the board to the drive unit, resoldered a few, no improvement. During this process, I think I might have short-circuited the power to the drive motor.
3 I took the transistor pairs which are driving the motor out, couldn't find a problem but replaced them nonetheless. No result.
4 I replaced the large motor management IC BA6109 but again, no result
Power to the part of the PCB where the motor management is located is OK. All resistors and inductors seem to be OK. I really am at a loss here.
Any suggestions?
  Reply With Quote
Old 11th March 2019, 12:42 PM   #2
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
NAD CD 514 won't spin
If this is a common KSS type pickup then did you remove the static protection shorting link (typically a solder blob)?

If you have shorted something out then all bets are off.
  Reply With Quote
Old 11th March 2019, 04:26 PM   #3
SalveTitus is offline SalveTitus
diyAudio Member
 
Join Date: Mar 2019
No I did not remove such blob ;-) Iíll check later tonight! (No cluenwhere the blob is but Iíll see) - thanks
  Reply With Quote
Old 11th March 2019, 06:30 PM   #4
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
NAD CD 514 won't spin
It looks like this:
Attached Images
File Type: jpg {949C4F8F-B5AA-4719-9EA3-E7997927BC03}.png.jpg (104.8 KB, 14 views)
  Reply With Quote

Reply


NAD CD 514 won't spinHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
quad 99 CDP: disc do not spin ludofrenchie Digital Source 2 6th September 2015 05:53 PM
My spin of a DC filter board kool lites Power Supplies 4 3rd June 2015 11:30 PM
Technics SP-10 Doesn't Spin breadhead Analogue Source 6 26th October 2014 11:09 PM
Rotel RCD-971 cd won't spin superhdcd Digital Source 2 26th August 2012 07:37 AM
CDM1 cannot spin YCLee Digital Source 4 1st December 2003 02:55 AM


New To Site? Need Help?

All times are GMT. The time now is 04:05 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki